archi Posted August 28, 2016 Report Share Posted August 28, 2016 2013 Passatt Alltrack 57k VW fsh There is a metallic oscillating noise that you can hear in the cabin at tick over and when pulling away slowly. Lift the bonnet or get underneath and you can't hear a thing. VW diagnosed fault as clutch and flywheel and replaced under the 2 year warranty. Anyway 400 miles later and noise has reappeared and is back with VW who are now a bit stumped as to the cause. Has anybody come across this in the past. Gearbox issue ?? Quote Link to comment Share on other sites More sharing options...
la bala Posted August 28, 2016 Report Share Posted August 28, 2016 Is the noise still there if you depress the clutch pedal. Quote Link to comment Share on other sites More sharing options...
archi Posted August 28, 2016 Author Report Share Posted August 28, 2016 Yes sure is there when the clutch pedal is fully pressed down Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted August 28, 2016 Report Share Posted August 28, 2016 Does the noise alter when gently revving with foot on clutch? Quote Link to comment Share on other sites More sharing options...
TaxiDriver Posted August 28, 2016 Report Share Posted August 28, 2016 Driveshaft output , or Dual Mass flywheel, (I know you say they say they've replaced it already, but really ?) Quote Link to comment Share on other sites More sharing options...
archi Posted August 29, 2016 Author Report Share Posted August 29, 2016 Does the noise alter when gently revving with foot on clutch?no no change in noise when revving, noise doesn't increase nor does the frequency Quote Link to comment Share on other sites More sharing options...
scutt Posted August 29, 2016 Report Share Posted August 29, 2016 ok been out of the repair business a while now but we used to replace g/box idler bearing on polo/golf boxes don't know if its the same set up in your alltrack but if it has a round cover plate on the end of the box about midway this could be the bearing cover get a screwdriver against the cover and your ear against the handle and you may be able to detect the noise we used to replace this bearing without taking the box out.hope this helps Quote Link to comment Share on other sites More sharing options...
archi Posted August 29, 2016 Author Report Share Posted August 29, 2016 IT is back with VW for them to sort under the 2 year extended warranty so hopefully they will Sort FOC just wanted to try to get some extra info so I don't get fobbed off Thanks all Quote Link to comment Share on other sites More sharing options...
955i Posted August 29, 2016 Report Share Posted August 29, 2016 Possible leak on flexible hose on exhaust system. Quote Link to comment Share on other sites More sharing options...
archi Posted September 7, 2016 Author Report Share Posted September 7, 2016 Well after a few more days with VW they now admit to hearing the noise although it is only noticeable when the car is warmed up. They now just have to diagnose the fault Quote Link to comment Share on other sites More sharing options...
Paul223 Posted September 8, 2016 Report Share Posted September 8, 2016 Gearboxes on these have a tendency to go, diff bearings iirc, can sound particularly harsh, linked to road speed not engine speed Quote Link to comment Share on other sites More sharing options...
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